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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.widget.listview.arrowscroll;
     18 
     19 import android.test.ActivityInstrumentationTestCase;
     20 import android.test.suitebuilder.annotation.LargeTest;
     21 import android.test.suitebuilder.annotation.MediumTest;
     22 import android.widget.ListView;
     23 import android.view.KeyEvent;
     24 import android.widget.listview.ListItemsExpandOnSelection;
     25 
     26 public class ListItemsExpandOnSelectionTest extends ActivityInstrumentationTestCase<ListItemsExpandOnSelection> {
     27     private ListView mListView;
     28     private int mListTop;
     29     private int mListBottom;
     30     private int mExpandedHeight;
     31     private int mNormalHeight;
     32 
     33     public ListItemsExpandOnSelectionTest() {
     34         super("com.android.frameworks.coretests",
     35                 ListItemsExpandOnSelection.class);
     36     }
     37 
     38     @Override
     39     protected void setUp() throws Exception {
     40         super.setUp();
     41         mListView = getActivity().getListView();
     42         mListTop = mListView.getListPaddingTop();
     43         mListBottom = mListView.getHeight() - mListView.getListPaddingBottom();
     44         mExpandedHeight = mListView.getChildAt(0).getHeight();
     45         mNormalHeight = mListView.getChildAt(1).getHeight();
     46     }
     47 
     48     @MediumTest
     49     public void testPreconditions() {
     50         assertEquals(0, mListView.getSelectedItemPosition());
     51         assertEquals("selected item should be 1.5 times taller than the others",
     52                 mExpandedHeight, (int) (mNormalHeight * 1.5));
     53     }
     54 
     55     @MediumTest
     56     public void testMoveSelectionDownNotRequiringScroll() {
     57 
     58         sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
     59 
     60         assertEquals(1, mListView.getSelectedItemPosition());
     61         assertEquals("first item's top should not have shifted",
     62                 mListTop, mListView.getChildAt(0).getTop());
     63 
     64     }
     65 
     66     @MediumTest
     67     public void testMoveSelectionUpNotRequiringScroll() {
     68         sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
     69 
     70         assertEquals(1, mListView.getSelectedItemPosition());
     71         final int oldBottom = mListView.getSelectedView().getBottom();
     72 
     73         sendKeys(KeyEvent.KEYCODE_DPAD_UP);
     74 
     75         assertEquals("bottom of 2nd itme should have stayed the same when " +
     76                 "moving back up",
     77                 oldBottom,
     78                 mListView.getChildAt(1).getBottom());
     79     }
     80 
     81     @MediumTest
     82     public void testMoveSelectionDownRequiringScroll() {
     83         int lastItemIndex = mListView.getChildCount() - 1;
     84 
     85         for(int i = 0; i < lastItemIndex; i++) {
     86             sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
     87         }
     88         getInstrumentation().waitForIdleSync();
     89 
     90         assertEquals("list position", lastItemIndex, mListView.getSelectedItemPosition());
     91         assertEquals("expanded height", mExpandedHeight, mListView.getSelectedView().getHeight());
     92         assertEquals("should be above bottom fading edge",
     93                 mListBottom - mListView.getVerticalFadingEdgeLength(),
     94                 mListView.getSelectedView().getBottom());
     95     }
     96 
     97     @LargeTest
     98     public void testMoveSelectionUpRequiringScroll() {
     99         int childrenPerScreen = mListView.getChildCount();
    100 
    101         // go down past last child on screen
    102         for(int i = 0; i < childrenPerScreen; i++) {
    103             sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
    104         }
    105 
    106         // go back up to second to last
    107         for(int i = 0; i < childrenPerScreen - 1; i++) {
    108             sendKeys(KeyEvent.KEYCODE_DPAD_UP);
    109         }
    110         getInstrumentation().waitForIdleSync();
    111 
    112         assertEquals("list position", 1, mListView.getSelectedItemPosition());
    113         assertEquals("expanded height", mExpandedHeight, mListView.getSelectedView().getHeight());
    114         assertEquals("should be below top fading edge",
    115                 mListTop + mListView.getVerticalFadingEdgeLength(),
    116                 mListView.getSelectedView().getTop());
    117     }
    118 }
    119